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HelpTest Code LAB441 Urine Protein Quantitation, Timed Collection
Clinical System Name
Urine Protein Quantitation, 24 Hours
Synonyms
U Prot Qnt
PROT U QNT
Protein, 24 Hour Urine
Sample Requirements
Specimen: Urine
Container(s): 24 Hour Urine Container
Preferred Vol: 24 hour collection
Minimum Vol: 1 mL; Timed collections other than 24 hr are acceptable.
Note: Do not use preservatives during collection. Please contact Lab (ext. 7-2102) to obtain a 24-hour urine jug. Storage: Refrigerate sample during collection. Document start and stop dates and times, along with the patient information. Deliver labeled jug to Clinical lab upon completion.
Processing Instructions
Reject due to:
Spin: N
Aliquot: N
Temp: 2-8 C
Storage location: CPA refrigerator, with remaining labels stored in CPA refrigerator, FrigB bucket.
Off-site collection: Do not use preservatives during collection. Please notify lab (206-987--2102) to obtain jug. Refrigerate sample during collection. Document start and stop dates and times, along with the patient information. Send entire sample in original container refrigerated. Timed collections other than 24 hr are acceptable.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Room Temp |
24 h |
| Refrigerated |
1 w |
|
| Frozen |
5 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M - F, day shift | 1 - 3 d |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem East
Phone Number: 206-987-2617
CPT Codes
84156
Methodology
Method: Spectrophotometry (pyrogallol red dye binding) by Vitros 4600
Analytical Volume: 0.5 mL aliquot from measured total volume
Limitations: Method is affected by fecal contamination and some drugs, including methotrexate. Contact Chemistry Laboratory for complete list (206) 987-3860.
Reference Range
< 150 mg/24 Hours